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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 343847Generated: October 25, 2026

Sulfuric Acid → 2-Amino-4-(6-methoxy-3,4,-dihydro-2h-quinolin-1-yl)-6-methylpyrimidine

https://huagongshe.com/reaction/343847

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantAmmonium HydroxideHCID 14923—
Reactant2-Amino-4-chloro-6-methylpyrimidineHCID 21810—
ReactantQuinoline, 1,2,3,4-tetrahydro-6-methoxy-HCID 67113—
SolventWaterHCID 962—
Product2-Amino-4-(6-methoxy-3,4,-dihydro-2h-quinolin-1-yl)-6-methylpyrimidineHCID 1583874549.4%

Reaction Steps

A flask containing 6-methoxy-1,2,3,4-tetrahydroquinoline (1.33 g), 2-amino-4-chloro-6-methylpyrimidine (1.00 g), sulfuric acid (0.6 g), and 100 mL of water was heated on a steam bath for 2 hours. The solution was then cooled to room temperature and treated with ammonium hydroxide until the solution was basic (pH 8-9). The resultant solid, which precipitated from solution, was collected by filtration and recrystallized from ethyl alcohol to give 2-amino-4-(6-methoxy-3,4,-dihydro-2H-quinolin-1-yl)-6-methylpyrimidine (0.93 g), m.p. 175.2°-175.9° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05863924
Source datasetuspto-grants-1999_01
ORD IDord-ef6222da18c04eb4a35b2dc2def97948
Source noteuspto-grants-1999_01